SNES battery replacement for games that won't save

It's never too late to replay your favorite Super Nintendo games. But it has been a while since these games were new. You may find your save file isn't working and new save files aren't saving on the SNES cartridge. This is likely due to an old battery. Failing batteries won't necessarily affect the gameplay—but they will affect save data.

In this guide, we'll go over how to replace old Super Nintendo batteries so you can continue saving your progress into the future.

Removing the existing battery will eliminate all current save data. Proceed with caution.

Which SNES games use a battery?

Not every SNES game uses a battery. The cartridges that have them use the power to store save data and unlockable content. You can find a complete list of SNES games that use a battery on DKoldies.

It's time to test your progress. Load up your SNES game and play enough to warrant a save. Our goal is to create new save data on the cartridge. After you save the game, restart the SNES and see if it loads.

Congratulations! You've added a few more years to the life of your SNES game.